The Romanian built IOA wagon is a type of high sided open wagon designed to carry ballast and spoil. They were first released in 2009 and all carried the distinctive Network Rail Engineers yellow livery. The IOA has a maximum load capacity of 102 tons and travelled in rakes of 10 or more wagons.

The Dapol Model of the IOA wagon features:

Finely moulded body with many separately added details

Finely applied livery and printed details

Profiled wheels

NEM pockets